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  2. Variations in traffic light operation - Wikipedia

    en.wikipedia.org/wiki/Variations_in_traffic...

    The left turn signal head operates independently from the signals for straight-through traffic. This allows permissive turning even when straight-through traffic is shown a red light, avoiding yellow trap. Louvers are fitted over the green and yellow balls of the left turn signal head to prevent driver confusion.

  3. Should you signal to make a right or left turn when trying to ...

    www.aol.com/signal-left-turn-trying-enter...

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  4. How often can you circle a roundabout in IL before ... - AOL

    www.aol.com/often-circle-roundabout-il...

    Signs posted near the roundabout will direct you to the appropriate lane based on whether you want to [exit the roundabout at a destination on your left], go straight or make a U-turn.

  5. Road signs in the United States - Wikipedia

    en.wikipedia.org/wiki/Road_signs_in_the_United...

    Signs including Stop, Yield, No Turns, No Trucks, No Parking, No Stopping, Minimum Speed, Right Turn Only, Do Not Enter, Weight Limit, and Speed Limit are considered regulatory signs. Some have special shapes, such as the octagon for the Stop sign and the crossbuck for railroad crossings.

  6. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    Unless another signal permits, traffic shall not enter the intersection except to lawfully turn on red: Traffic must stop before entering the intersection, but may then treat the signal by the same rules as a STOP sign. Red arrow Traffic shall not make the movement displayed by the arrow

  7. Rules for traffic lights - Wikipedia

    en.wikipedia.org/wiki/Rules_for_traffic_lights

    A hook turn, or two-stage turn, is generally used to allow lighter vehicles such as cycles or motorcycles to turn across oncoming traffic. Such vehicles when permitted can move to the nearside of the junction and position themselves in front of side road traffic, waiting for the side road traffic to gain a green signal before completing the turn.

  8. Glossary of road transport terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_road_transport...

    See three-way junction 5-1-1 A transportation and traffic information telephone hotline in some regions of the United States and Canada that was initially designated for road weather information. A Access road See frontage road Advisory speed limit A speed recommendation by a governing body. All-way stop or four-way stop An intersection system where traffic approaching it from all directions ...

  9. Comparison of European road signs - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_European...

    Go straight Turn right Go straight or turn right Turn left or right Roundabout [note 6] [note 6] Keep left / Keep right or : or : May pass on either side Route for vehicles carrying dangerous goods Minimum speed limit Austria Belgium Bosnia and Herzegovina Bulgaria Czechia Denmark Estonia Finland France Germany Greece Hungary Iceland Ireland